AWS MCP Server

Instructions

Implementation Reference

• src/mcp_server_aws/server.py:146-150 (handler)

  Executes the S3 bucket creation using boto3 S3 client with the provided bucket name and region from environment.

  if name == "s3_bucket_create":
      response = s3_client.create_bucket(Bucket=arguments["bucket_name"],
                                         CreateBucketConfiguration={
                                             'LocationConstraint': os.getenv("AWS_REGION") or 'us-east-1'
                                         })

• src/mcp_server_aws/tools.py:6-19 (schema)

  Defines the tool schema including name, description, and input schema requiring 'bucket_name'.

  Tool(
      name="s3_bucket_create",
      description="Create a new S3 bucket",
      inputSchema={
          "type": "object",
          "properties": {
              "bucket_name": {
                  "type": "string",
                  "description": "Name of the S3 bucket to create"
              }
          },
          "required": ["bucket_name"]
      }
  ),

• src/mcp_server_aws/server.py:136-140 (registration)

  Registers the list_tools handler which returns all AWS tools including s3_bucket_create via get_aws_tools().

  async def list_tools() -> list[Tool]:
      """List available AWS tools"""
      logger.debug("Handling list_tools request")
      return get_aws_tools()